KR101175706B1 - Integrated Dies for Forming Bellows on a Straw - Google Patents

Abstract

This invention discloses prefabricated straw pleated dies. It is a creasing die which is provided to press from the outside of the straw against the creasing spiral of the spindle inserted into the inner passage of the straw in a straw creasing apparatus for corrugating the straw, and has a plurality of insertion grooves formed in parallel in the longitudinal direction thereof. A main body having a plurality of molding blades respectively inserted into the plurality of insertion grooves of the main body portion with its lower end slightly projecting, and fastening means for detachably fixing the plurality of molding blades to the main body portion. Doing. This reduces not only the entire die that forms the pleats on the straw, but also the forming blades, which are the parts where wear occurs, as well as the reuse of the molded blades with worn parts, which reduces maintenance costs. It provides a remarkable effect, such as improving the productivity of the process of molding the wrinkles.

Description

Prefabricated Dies for Forming Bellows on a Straw}

The present invention relates to a die used to mold the wrinkles on the straw, and more particularly, not only can replace the molding blades in direct contact with the straw individually, but also can be used by changing the assembly position of the molding blades, It also relates to a new type of prefabricated straw pleated dies that has made it possible to satisfy both economics and performance.

In general, as shown in Figure 1, the straw or straw (10, 10), which is a hollow plastic tube-shaped device for making beverages easier to drink, the internal passage is maintained even when bent in the desired direction The pleats 12 are formed partially to ensure that they are. Apparatus for pleating the straw is disclosed, for example, in Utility Model Publication No. 199393-0007425 and Patent Registration No. 10-0342136.

The general structure and operation of a conventional straw pleating apparatus is shown in FIGS. Referring to FIG. 2, the straw pleating apparatus 100 includes a supply hopper 110 for supplying the straw 10 in a state where wrinkles are not formed, and a straw 10 supplied from the supply hopper 110. And a sewing machine 130 for clamping one by one, and a conveyor forming a caterpillar for transferring each sewing machine 130 to a subsequent process and returning it to its original position. And the straw pleating apparatus 100, as shown in Figs. 3 and 4, to form a pleat on the straw 10 is clamped to the sewing machine 130 being conveyed on this conveyor, Spindle mechanism 150 is inserted into the inner passage to help the wrinkle molding, and the wrinkle forming die 170 for pressing the straw 10 against the spindle mechanism 150 from the outside of the straw (10).

The sewing machine 130 continuously processes the straws 10 sequentially supplied through the hopper 110 and is processed into the straws 10 in which the pleats 12 are formed. The sewing machine 130 is a mechanism for clamping the straws 10 one by one, as shown in FIG. 3, and is disposed transverse to the traveling direction of the conveyor. On the sewing machine 130, in addition to the device for clamping the straw, additional devices such as a pair of spindle mechanism 150 and a mandrel mechanism are further installed as shown.

Each spindle mechanism 150 includes an elongated rod-shaped spindle 154 inserted into the inner passage from the side of the straw 10 and a slider for moving the spindle 154 in and out of the inner passage of the straw 10. 152 is provided. The surface of the spindle 154 of the at least one spindle mechanism 150 has a wrinkle forming spiral 156 for wrinkle formation.

Once the straw 10 supplied from the hopper 110 is clamped to the sewing machine 130, the spindle mechanism 150 operates on the sewing machine 130 to insert the spindle 154 into the passage 10 inside the straw 10. In this state, the wrinkle forming die 170 is approached. Then, as shown in FIG. 4, a portion of the straw 10 is interposed between the forming blade 172 protruding on the lower surface of the wrinkle forming die 170 and the wrinkle forming spiral 156 of the spindle 154. The wrinkles 12 are formed by being pressed. As soon as the shape of the wrinkles 10 is pressurized, the wrinkles 10 are processed in a stretched form, and then the wrinkles 10 of the stretched shape are pressed by the mandrel mechanism to contract in the longitudinal direction thereof. ) May be formed in the form of compressed wrinkles 12.

The straw 10 pleated by the straw pleating apparatus 100 may then be supplied to a subsequent process, such as a beverage straw packing machine as disclosed, for example, in Utility Model Publication No. 1992-0003425.

By the way, since the conventional wrinkle forming die 170 has a form in which the forming blade portion 172 formed at the lower end thereof is integrally processed, a part of the forming blade portion 172 is damaged or needs to be replaced due to wear. , The whole wrinkle forming die 170 had to be replaced with a new one. In this case, even if the damaged part is limited to only a part of the molding blade 172, since the wrinkle forming die 170 must be replaced entirely, the maintenance cost of the process increases and productivity is reduced.

Therefore, it would be advantageous if a straw creasing die in a straw creasing device was proposed in which a new structure of a creasing die that could replace only a damaged portion of a forming blade without having to replace the creasing die entirely.

An object of the present invention was developed to improve and compensate for the above-mentioned shortcomings, and it is possible to selectively replace only a worn or damaged molding blade instead of the entire wrinkle forming die, thereby reducing the unnecessary waste and cleaning or maintenance. It is to provide a prefabricated straw corrugated die that also has convenience in work and the like.

It is another object of the present invention that the upper and lower ends of each of the individual forming blades have the same symmetrical shape, so that even if the forming blade having a part damaged or worn, it is economical to reuse only by changing its assembly position. A new type of prefabricated straw corrugated die is provided.

The object is achieved by a prefabricated straw corrugated die provided in accordance with the present invention, the prefabricated straw corrugated die provided in accordance with an embodiment of the present invention, in a straw corrugated apparatus, A rectangular main body installed to press the outside of the straw against the crimping spiral of the spindle inserted into the inner passage, the rectangular main body having a plurality of insertion grooves having different lengths in parallel in the longitudinal direction; Corresponding to the insertion grooves are formed to have different lengths and are inserted to be detachably inserted into the insertion grooves, each lower end is placed in a protruding state from the insertion grooves to impart a pressing force to form a wrinkle on the straw A plurality of forming blades; And fastening means for detachably fixing the plurality of molding blades to the main body.

The fastening means is characterized in that the fastening means for fastening the molding blades through the insertion grooves and the insertion grooves of the main body through the through grooves and the through grooves installed through the main body and the forming blades.

The prefabricated straw corrugating dies provided according to another embodiment of the present invention, in the straw corrugating apparatus, are installed to press from outside the straw against the corrugating spiral of the spindle inserted in the inner passage of the straw in the corrugating apparatus. A rectangular body having a plurality of insertion grooves having the same length in parallel in the longitudinal direction; Is formed in the same length corresponding to the insertion grooves are inserted to be detachably inserted into the insertion grooves, each of the lower end is located in a protruding state from the insertion grooves to provide a pressing force to form a wrinkle on the straw Molding blades; It characterized in that it comprises a fastening means for detachably fixing the plurality of forming blades to the body.

The fastening means may include fastening bands respectively installed at both ends of the main body and the molding blades and fastening bands respectively inserted into the fastening grooves to support the molding blades inserted into the insertion grooves of the main body to the main body. Penetration through the fastening band is fastened to the main body characterized in that consisting of a fastener for pressing and fixing the forming blades to the main body.

In addition, the forming blades are characterized in that the upper and lower ends are formed in the same blade shape.

The present invention having the above-described configuration has the effect of making it possible to replace only the molding blades individually so as to reduce unnecessary economic waste generated when replacing all the existing blades, and to facilitate the replacement of the blades. .

In addition, the configuration of the upper and lower ends of each of the individual forming blades symmetrically the same shape, if the part is damaged or worn by changing only the assembly position of the corresponding forming blade can be reused, die maintenance costs In addition to the reduced economic benefits, there is an effect that increases productivity.

1-4 are schematic diagrams illustrating a conventional straw and apparatus for pleating the straw.
Figure 5 is a schematic cross-sectional view showing the structure of the assembled straw pleated die according to an embodiment of the present invention.
Figure 6 is a schematic exploded perspective view showing the structure of the assembled straw corrugated die according to an embodiment of the present invention having a plurality of forming blades having different lengths.
7 and 8 are schematic perspective and exploded perspective views showing the structure of the assembled straw pleated die according to another embodiment of the present invention having a plurality of forming blades having the same length.

Hereinafter, with reference to the accompanying drawings illustrating the present invention with a specific example as follows.

The prefabricated straw pleating dies 270 provided in accordance with one aspect of the present invention are inserted into the internal passages of the straw 10 in a straw pleating apparatus 100 for forming a pleat 12 in the straw 10. It is installed to press the outside of the straw against the crimping spiral 156 of the spindle (154).

Referring to FIG. 5, when the spindle 154 is inserted into the inner passage of the straw 10 and approaches the creasing die 270, the forming blade portion 279 and the spindle 154, which are lower ends of the creasing die 270, are approached. The wrinkles of the straw 10 may be formed between the wrinkles forming spirals 156 and the plastics of the straw 10 are inserted into the wrinkles in a shape similar to the wrinkles spiral 156. It is a feature of the present invention that the shaping blade portion 279 of the corrugated die 270 is constructed in a prefabricated manner.

In the embodiment shown in Figs. 5 and 6, the corrugated die 270 is provided with a body portion 271, a plurality of forming blades 275 and fastening means 274, 276, for protecting the die structure The frame 277 may be further provided.

In the illustrated example, the body portion 271 has a rectangular parallelepiped shape having a long length in the direction in which the straw 10 is generally conveyed, and includes a plurality of insertion grooves 273 formed in parallel in the longitudinal direction thereof.

The plurality of shaping edges 275 are respectively inserted into the plurality of insertion grooves 273 of the body portion 271 with their lower ends slightly projecting. Although the sizes of the insertion grooves 273 and the forming blades 275 correspond to each other, it is difficult for the forming blades 275 to be difficult to be removed by being excessively pressed into the insertion grooves 273. Since the main object of the present invention is to facilitate the replacement of the molding blade 275, it is preferable that the molding blade 275 can be relatively freely inserted into and out of the insertion groove 273.

Removably fixing the molding blade 275 inserted into the insertion groove 273 is performed using separate fastening means 274 and 276. The fastening means 274 and 276 are inserted into the through grooves 274 and the through grooves 274 respectively formed in the main body 271 and the forming blade 275, as shown in the illustrated example, to the main body portion 271 It may be made of a fastener 276, such as a bolt for fixing the forming blade (275). Such fastening means is not necessarily limited to the illustrated example, and other structures are also possible as long as the fastening means can be detachably fixed.

In the example shown, the plurality of shaping edges 275 have different lengths, not the same in length, having a length that is longest at the center and gradually shortens from side to side. This structure has the advantage that the process when the lower ends of the plurality of forming blades 275 in contact with the straw 10 for the wrinkle molding is made more smoothly. Alternatively, according to the invention, a plurality of forming blades 275 may be the same in length.

7 and 8 illustrate another embodiment in which the fastening means has a structure different from that of the example shown in FIG. 6 and includes molding blades of the same length.

The corrugated die 370 includes a main body 371, a plurality of molding blades 375, and fastening means 376 and 377.

The main body 371 likewise has a rectangular parallelepiped shape having a long length in the direction in which the straw 10 is conveyed, and has a plurality of insertion grooves 373 of the same length formed in parallel in the longitudinal direction.

Each of the plurality of forming blades 375 is respectively inserted into the plurality of insertion grooves 373 of the main body 371, with the lower end slightly protruding. In the thin direction, the front side and the rear side are partially cut to form a recess.

The fastening means 376 and 377 are inserted into the fastening grooves 374a and 374b formed at both ends of the molding blade 375 and the main body portion 371, respectively, to collectively form the molding blades 375 in the main body portion 371. It may be composed of a bar-shaped fastening band 377 for pressing and fixing the fastener 376, which may be a bolt or a screw for fixing the fastening band 377 to the body portion 371.

According to the present invention having such a structure, when damage occurs in a specific molding edge (275, 375) in the wrinkle forming process, it is not necessary to replace the entire wrinkle forming dies (270, 370), only damage is generated Since only certain forming blades 275 and 375 can be replaced, the maintenance cost can be reduced, the replacement operation can be made easy and can be provided quickly.

In addition, in the prefabricated straw corrugated dies 270 and 370 according to the present invention as described above, the forming blades 275 and 375 are symmetrically identical in the upper and lower ends thereof, respectively. If part of the molding edges 275 and 375 are damaged in part during the corrugation process, some of the bottom portions that contact the straw 10 are usually damaged. In this case, after removing and inverting a specific molding blade (275, 375) damaged at the bottom, and reassembled by positioning the assembly so that the undamaged top is at the bottom, it provides the advantage that even a partially damaged molding blade can be reused. .

In the above, the present invention has been described through specific embodiments, but those skilled in the art can refer to and combine various features described in the present disclosure, and various and modified construction methods are possible. Therefore, it should be pointed out that the scope of the present invention should not be limited to the described embodiments, but should be interpreted by the appended claims.

10: straw 12: wrinkle
100: straw wrinkle forming apparatus 110: supply hopper
130: ironing table 150: spindle mechanism
152: slider 154: spindle
156: wrinkle forming spiral 170: wrinkle forming dies
172: molding blade 270: wrinkle forming dies
271: main body 273: insertion groove
274: through groove 275: forming blade
276 fastener 277 frame
279: forming blade portion 370: wrinkle forming dies
371: main body 373: insertion groove
375: forming blade 376: fastener
377: fastening band

Claims (5)

delete In a straw wrinkle forming apparatus,
A rectangular main body installed to press the outside of the straw against the wrinkle forming spiral of the spindle inserted into the inner passage of the straw in the wrinkle forming apparatus and having a plurality of insertion grooves having different lengths in parallel in the longitudinal direction;
Corresponding to the insertion grooves are formed to have different lengths and are inserted to be detachably inserted into the insertion grooves, each lower end is placed in a protruding state from the insertion grooves to impart a pressing force to form a wrinkle on the straw A plurality of forming blades; And
It comprises a fastening means for detachably fixing the plurality of forming blades to the main body,
The fastening means is a prefabricated straw pleat, characterized in that the fasteners for fastening the molding blades inserted into the insertion grooves of the main body through the through grooves and the through grooves installed through the main body and the forming blades, respectively. Molding dies. delete In a straw wrinkle forming apparatus,
A rectangular body having a plurality of insertion grooves which are installed to press from the outside of the straw against the wrinkle-forming spiral of the spindle inserted into the inner passage of the straw in the wrinkle-forming apparatus, and having a plurality of insertion grooves having the same length in parallel in the longitudinal direction;
Is formed in the same length corresponding to the insertion grooves are inserted to be detachably inserted into the insertion grooves, each of the lower end is located in a protruding state from the insertion grooves to provide a pressing force to form a wrinkle on the straw Molding blades; And
It comprises a fastening means for detachably fixing the plurality of forming blades to the main body,
The fastening means may include fastening bands respectively installed at both ends of the main body and the molding blades and fastening bands respectively inserted into the fastening grooves to support the molding blades inserted into the insertion grooves of the main body to the main body. Prefabricated straw pleated dies, characterized in that consisting of a fastener for pressing and fixing the forming blades to the main body by being fastened to the main body through the fastening band. 5. The prefabricated straw pleated die according to claim 2 or 4, wherein the forming blades are formed so that the upper and lower ends thereof have the same blade shape.

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